insectivore vs fauna

insectivore and fauna both are nouns.

Word	Noun	Adjective	Verb	Adverb
insectivore	Yes	No	No	No
fauna	Yes	No	No	No

As nouns, fauna is a hypernym of insectivore; that is, fauna is a word with a broader meaning than insectivore:

Other hypernyms of insectivore include animal, animate being, beast, brute, creature.

insectivore (noun)	fauna (noun)
small insect-eating mainly nocturnal terrestrial or fossorial mammals	a living organism characterized by voluntary movement
any organism that feeds mainly on insects	all the animal life in a particular region or period